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Finding the Fourth Proportional to 63,809.86, 88,042.56 and 53,639.55

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Solution

The fourth proportional to 63,809.86, 88,042.56 and 53,639.55 is: 74,009.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,809.86 : 88,042.56 = 53,639.55 : x
  2. Step 2: Convert to fraction form
    63,809.86/88,042.56 = 53,639.55/x
  3. Step 3: Cross multiply
    63,809.86x = 88,042.56 × 53,639.55
  4. Step 4: Simplify right side
    63,809.86x = 4,722,563,299.25
  5. Step 5: Solve for x
    x = 4,722,563,299.25/63,809.86
  6. Step 6: Final answer
    x = 74,009.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.